124
Calculation examples
Calculation
Example
Operation
Display (answer)
Arithmetic
12 x 3 + 5 =
12
X
3
+
5
=
41.
(–24)
÷
4 – 2 =
24
+
/–
4
–
2
=
–8.
Constant
34 + 57 =
34
+
57
=
The addend becomes a constant.
91.
45 + 57 =
45
=
102.
(Subtraction and division are performed in
the same manner.)
68 x 25 =
68
X
25
=
The multiplicand becomes a constant.
1,700.
68 x 40 =
40
=
2,720.
Percentage
What is 10% of 200?
200
X
10
%
20.
What percentage is
9
36
%
25.
9 of 36?
Add-on
What results from a
200
+
10
%
220.
10% increase of 200?
(or 200
X
10
%
+
=
)
Discount
What is 500 after a
500
–
20
%
400.
20% discount?
(or 500
X
20
%
–
=
)
Square root
√
25 – 9 =
25
–
9
=
ª
4.
Power
(4
3
)
2
=
4
X
=
=
X
=
4,096.
Reciprocal
1/8 =
8
=
0.125